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Bottlehead S.E.X. - Brilliant value and a highly satisfying project

A Review On: Bottlehead S.E.X. (Single-Ended eXperimenter's kit)

Bottlehead S.E.X. (Single-Ended eXperimenter's kit)

Rated # 93 in Desktop Amps
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Review Details:
Audio Quality
Posted · Updated · 4567 Views · 1 Comment

Pros: Great, clear and transparent sound, drives speakers and a wide range of headphones, you get to build your own, you can customise its appearance

Cons: May be a little lean on the bass for some, especially compared to the Bottlehead Crack

The Bottlehead S.E.X. is the mid-level DIY tube headphone amp from Bottlehead USA. As per the very well-known Crack OTL amplifier, it's a kit that you build yourself, but it's a little more challenging than the Crack due to the extra components involved.


In short, the Crack and S.E.X. both have their own strengths, but the S.E.X. is a definite step up in overall sound (which is a major complement) and it drives all range of headphone impedances, unlike the Crack's limit to >300ohm units.


The S.E.X. offers accurate, transparent sound with great texture, staging and imaging while the Crack offers lusher mids and fuller bass.


I've created a full thread to discuss the Crack, the S.E.X., and soon the Mainline, Bottlehead's TOTL headphone amp.


You can view the full thread here: http://www.head-fi.org/t/683012/bottlehead-amplifier-discussion-comparison-thread-crack-sex-mainline


Or jump to the full S.E.X. review here: http://www.head-fi.org/t/683012/bottlehead-amplifier-discussion-comparison-thread-crack-sex-mainline#post_9831527

1 Comment:

Great job on the builds and reviews.  I think adding the C4S and switching to 32ohms output impedance will help with the bass.  Running the S.E.X. balanced is also superb.  Swapping caps is fun too.